COPYRIGHT © 2000 CANON INC. 2000 2000 2000 2000 CANON iR5000/iR6000 REV.0 JULY 2000CHAPTER 7 EXTERNALS AND CONTROLS7-21 P5.4 PCBs5.4.1 DC Controller PCB1) Remove the rear upper cover.2) Disconnect the 26 connectors, and re-move the seven screws [1]; then, detachthe DC controller PCB [2].F07-504-01Keep the following three points in mind when replacing the PCBs:• Be sure to transfer the six EEP-ROMs from the old to new PCBs; atthat time, be sure to refer to the color of each round label attached to theEEP-ROM for correct transfer.• Be sure to enter the values indicated on the label [3] on the new PCB inservice mode by making the following selections:COPIER>ADJUST>HV-TR>D-PRE-TRCOPIER>ADJUST>HV-TR>D-HV-TRCOPIER>ADJUST>HV-SP>D-HV-SPCOPIER>ADJUST>DEVELOP>D-HV-DE• Be sure to transfer the shorting connector [4] of J303 on the PCB fromthe old to new PCB. (Keep in mind that failure to do so will disable thecontrol panel indication.)F07-504-02[1][1][2]Red (IC105)Brown(IC104)Yellow(IC109)Blue(IC127)White (IC130)Green (IC110)J303[3][4]Download Free Service Manual at http://printer1.blogspot.com
